If a creature attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

{T}: Add one mana of any color that a land an opponent controls could produce.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and {T} no matter when it came under your control.) Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

{T}: Add {C}{C}.